Dolby Surround

Adescription of Dolby Surround must of
necessity start with its background,
which is in film making. The production of
film sound is different from music-studio
practice, if only because it evolved separately
and, for the most part, earlier. The film industry
developed facilities for recording,
synchroniaation amd complex mixes from
several sound sources lang before the flrst
multi-track sound only reproduction equipment
was developed. In fact, many ofthese
techniques antedated the advent of magneticrecording.
When filmmakers could not
find equipment to implement those tecbniques,
they invented and built it themselves.

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